<template>
  <div class="yaml-editor">
    <textarea ref="textarea" />
  </div>
</template>

<script>
import CodeMirror from "codemirror";
import "codemirror/addon/lint/lint.css";
import "codemirror/lib/codemirror.css";
import "codemirror/theme/monokai.css";
import "codemirror/mode/yaml/yaml";
import "codemirror/addon/lint/lint";
import "codemirror/addon/lint/yaml-lint";
import 'codemirror/addon/scroll/simplescrollbars.css'
import 'codemirror/addon/scroll/simplescrollbars'
window.jsyaml = require("js-yaml"); // 引入js-yaml为codemirror提高语法检查核心支持

export default {
  name: "YamlEditor",
  // eslint-disable-next-line vue/require-prop-types
  props: ["value"],
  data() {
    return {
      yamlEditor: false,
      marked: [],
    };
  },
  watch: {
    value(value) {
      const editorValue = this.yamlEditor.getValue();
      if (value !== editorValue) {
        this.yamlEditor.setValue(this.value);
      }
    },
  },
  mounted() {
    this.yamlEditor = CodeMirror.fromTextArea(this.$refs.textarea, {
      lineNumbers: true, // 显示行号
      mode: "text/x-yaml", // 语法model
      gutters: ["CodeMirror-lint-markers"], // 语法检查器
      theme: "monokai", // 编辑器主题
      lint: true, // 开启语法检查
      scrollbarStyle:'overlay'
    });
    setTimeout(() => {
      this.yamlEditor.setValue(this.value);
      this.yamlEditor.setSize(760, 520)
    }, 10);
    this.yamlEditor.on("change", (cm) => {
      this.marked = cm.state.lint.marked;
      this.$emit("changed", cm.getValue());
      this.$emit("input", cm.getValue());
    });
  },
  methods: {
    getValue() {
      return this.yamlEditor.getValue();
    },
    getError() {
      let iserror = false;
      if (this.marked && this.marked.length) {
        iserror = true;
      }
      return iserror;
    },
  },
};
</script>

<style scoped>
.yaml-editor {
  height: 100%;
  position: relative;
}
.yaml-editor >>> .CodeMirror {
  height: auto;
  min-height: 300px;
}
.yaml-editor >>> .CodeMirror-scroll {
  min-height: 300px;
}
.yaml-editor >>> .cm-s-rubyblue span.cm-string {
  color: #f08047;
}
</style>
